Removable-gauze screen.



"H. HIGGIN.

REMOVABLE GAUZE SCREEN.

APPLICATION FILED SEPTLIB. 1914.

1,171,951. Patentedleb. 15,'1916.

i To all whom it may concern:

UNITED STATES PATENT OFFICE.

. HENRY HIGGIN, HEWPOBT, KENTUCKY, ASSIGNOB '.l.0 THE HIGGIN MANI JFAC-TUBING COMPANY, OF NEWPORT, KENTUCKY, A CORPORATION OF WEST VIRGINIA. I

Specification of Letters Patent. Patented Feb, 15, 1916.

Application filed September 16, 1914. Serial No. 861,930.

Be it known that I, HENRY HIGGLN, a

citizen of the United States, and a resident of the city of Newport, inthe county of Campbell and State of Kentucky, have invented certain newand useful Improvements in Removable-Gauze b'creens, of which thefollowing is afull, clear, and exact description, reference being had tothe accompanying drawings, forming part of this specification.

It has been a desideratum in the art of screen making and particularlyin metal screen making to construct a screen of which the parts arestrong and secure, and which can be made demountable "so as to allow ofreplacing torn wire gauze, and capable of being put together againwithout danger of being bent or destroyed.

plete.

There are screens in the art where, in addition to the familiar tubeshaped screen body, there is a channel formed by bringing both edges ofthe metallic strip outwardly and upwardly after forming the tube. Thischannel is non-springing, and stifi'ened by'overlapping the edges toform a bead at the top of the channel and a spring retaining strip isused to wedge the wire gauze or screening in the channel. In'thisconstruction, the sprin retaining strip must be made of slit tubing, orthe like, to allow for considerable expansion and retraction, and whenit is being pulled out and placed into the channel it is verylikely tobecome bent or .flattened so as to be useless, and put the screen out ofcommission until new spring strips of proper size can i be secured It isthe object of my invention to pro,- vide a screen of tubular formedframe, preferably, and with a spring channel, and solid non-bending orflattening spline, and this object is accomplished by that certainconstruction and arrangement of parts which will be hereinafterspecifically pointed out and claimed. r

In the drawings, Figure l is a front elevation of a corner of the newscreen com- Fig. 2 is a vertical section throu h the same. Fig. 3 is aperspective view 0 a section of the spline. Fig. 4 is a perspective viewof one of the corner pieces.

The metal strip for each side of the frame is bent to form a tube'havingsides 1 and 2,

top 3 and bottom 4. The one edge of the over at the edge 5 and extendedat right angles, parallel with the bottom 4 of the numeral-6, forms oneside wall of the channel, thebottom piece 4 of the tube forms theotherside wall, and the base of the channel is formed of the doublethickness of' metal formed at'7, 7 It is preferred to have these twothicknesses brazed together for perfect security. A bead 8 -is ormedatthe end of the channel wall 6, and'over this bead .is bent the end ofthe Wire gauze 9 used in the screen. 7

The channel wall 6 being of a single piece of metal, not reinforced inany way, will have considerable of a spring at its outer or beaded end,and accordingly I am enabledto use a nonresilient retalning bar orspline, The bar 10 for this purpose ispreferably made of half of alongitudinally split concavity is not such as to affect the stiffness'ofthe bar or to give the bar any spring or compressibility. A metal rodsplit lontube. This last extension, indicated by the gitudinally andformed either with or without a concave surface could insome instancesbe used. v I

In fixing in the gauze, the end to be secured is bent over the bead at8, the convex surface of the bar turned toward the head and the barforced into the channel 7 edgewise. In doing this the concave por-.

tion permits of partially twisting the bar into the channel because theconcavity pe'rmits the bar to pass in around the corner formed by thesides and bottom 1, 1, of the tubular frame Ei'ece. A slighttap of ahammer is then su cient when the bar is nearly in place, to wedge ittightly in the channel beyond. the bead 8. It is understood of coursethat this wedging in of the bar wedges in the screening also.

To remove the bar for renewing the screening, it is only necessary tolift it slightly with any convenient bladed tool; when aided by theconcavity the bar may be twisted out. It remains, then, to be noted thatthis bar may be of metal, which is stiff, strong and nonbending, so thatit may be withdrawn and forced back in without danger of bending orflattening; and further that the concavity in said bar tends also tosave chance of pounding the spring side 6 of the channel.

For the corners I provide angle pieces as illustrated in Fig. 4. Thesepieces may be solid, but for manufacturing purposes I make the anglepieces of a plurality of pieces 13 riveted together by rivets 14:. Thecorners of the metal frame are mitered and the angle pieces inserted,the parts brazed or riveted together, thus forming a solid substantialframework. The corner pieces are also utilized to hold the usual springs16 for the side of the screen. The surface of the angle piece is cutaway at 17 and one of the mitered corners is also cut away slightly toallow for the insertion of the inner end of the spring 16, thus forminga convenient and easy method of securing the springs. 1

Having thus described my invention, and noted. its advantages, what Iclaim as new and desire to secure by Letters Patent, is:

1. In a metal screen, in combination with a metal framework formed of astrip of sheet metal folded to form a hollow body portion with the sidesof the strip contacting and extending laterally to form the base of achannel and with one side carried upwardly from the base to form a sidewall for the channel of a single thickness, wire gauze with itsedges'inserted in the channel and a non-resilient retaining bar to holdthe wire gauze in place.

2. In a metal screen, in combination with a metal framework formed. of astrip of sheet metal folded to form a hollow body portion with the sidesof the strip contacting and extending laterally to form the base of achannel and with one side carried upwardly from the base to form a sidewall for the channel of a single thickness, wire gauze with its edgesinserted in the channel, a nonresilient retaining bar seated in thechannel with a bead along the upper edge of the side wall of the channelto hold the retaining bar in place.

3. In a metal screen, in combination with a metal framework formed of astrip of sheet metal folded to form. a hollow body portion with thesides of the strip contacting and extending laterally to form the baseof a channel and with one side carried upwardly from the base to form aside wall for the channel of a single thickness, wire gauze with itsedges inserted in the channel and a non-resilient retaining bar to holdthe wire gauze in place with a concavity in said bar to pass one edge ofthe channel. y

4. In a metal screen, in combination with a metal. framework formed of astrip of sheet metal folded to form a hollow-body portion with the sidesof the strip contacting and extending laterall to form the base of achannel and with one side carried upwardly from the base to form a sidewall for the channel of a single thickness, wire gauze with its edgesinserted in the channel and a non-resilient semi-cylindrical retainingbar to hold the wire gauze in place with a bead along the upper edge ofthe side wall of the channel to hold the retaining bar, said barprovided with a concavity in the non-cylindrical face to pass the edgesof the channel.

. HENRY HIGGIN. Witnesses:

VALTER A. FABER, F. W. SWORMSTEDT.

